目的　研究评价脉冲激光光束质量的同步测量方法 .方法　通过分析脉冲激光光束和 CCD测量系统的特点 ,提出在低重复和高重复频率情况下的多种同步测量方法 ,并通过对钇铝石榴石 ( YAG)激光光束质量的评价实验加以验证 .结果　成功地在不同脉冲频率下对 YAG脉冲激光光束质量进行了评价 ,并计算出光束质量因子的数量级为 1 0 .结论　所提出的同步测量方法用于评价脉冲激光光束质量是有效的 . OBJECTIVE To study the synchronous measurement method for evaluating the quality of pulsed laser beam.METHODS By analyzing the characteristics of pulsed laser beam and CCD measurement system, a variety of simultaneous measurement methods with low repetition and high repetition rate were proposed. YAG laser beam quality.Results The quality of YAG pulsed laser beam was successfully evaluated at different pulse frequencies and the order of magnitude of the beam quality factor was calculated to be 10. Conclusions The proposed synchronous measurement method was applied to It is effective to evaluate the pulsed laser beam quality.